| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 81.07 | 489.74 | 50.42 | 304.77 | 23.17 | 119.98 | 34.27 | 301.07 | 0.6067 | -1272.9 | -374.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-13 11:59:02 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 0.87 | 0.00 | 0.55 | 21.82 | 121.18 | 35.47 | 298.34 | 0.6144 | -308.0 | -275.8 | |
| 0.00 | 1.66 | 0.00 | 1.03 | 21.03 | 120.18 | 34.47 | 297.62 | 0.5985 | 585.0 | 443.9 | |
| 81.07 | 484.77 | 50.42 | 301.68 | 23.17 | 119.99 | 34.28 | 301.07 | 0.6068 | -1355.0 | -377.2 | |
| 0.00 | 1.22 | 0.00 | 0.75 | 23.77 | 118.44 | 32.73 | 302.91 | 0.5917 | -591.0 | -433.9 | |
| 0.00 | 1.22 | 0.00 | 0.76 | 26.17 | 118.18 | 32.47 | 306.73 | 0.6034 | -637.0 | -508.9 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |